Meow Meow

Question 1

Protein or amino acid based hormones typically exert their effects through factivation of intracellular________ in their target cells?

Answer 1

Second Messengers

Question 2

The ability of a specific tissue or organ to respond to
the presence of a
hormone is dependent on:

Answer 2

The presence of the appropriate receptors on the
cells of the target tissue or organ

Question 3

Hypothalamic corticotropin-releasing hormone regulates
which of the following anterior pituitary hormones:

Answer 3

Adrenocorticotropic hormone

Question 4

4. Growth hormone (GH) is secreted into the bloodstream
   and can be inhibited by

Answer 4

Anterior pituitary; hypothalamic growth hormone
inhibiting hormone

Question 5

Hyposecretion of growth hormone in a child results in
which condition?

Answer 5

Pituitary dwarfism

Question 6

6. What is the correct sequence of organs and their
   hormones released, that are needed for full activation of
   thyroid hormone secretion?
   KEY: -hypothalamus b-anterior pituitary c-posterior
   pituitary -thyroid stimulating hormone e thyrotropin
   releasing hormone

Answer 6

a. AEBD

Question 7

A hypodermic injection of thyroid stimulating hormone
(TSH) would most likely:

Answer 7

Result in increased blood levels of thyroid hormones

Question 8

Antidiuretic Hormone ______

Answer 8

Increases urine production

Question 9

Glucocorticoids enable the body to deal appropriately
with long periods of stress. They accomplish this by:

Answer 9

Increasing blood glucose, fatty acid, and amino acid
levels and enhancing blood pressure

Question 10

Which set of hormones represents a permissive effect
based on hormone interactions?

Answer 10

Epinephrine and thyroid hormones

Question 11

The parathyroid glands maintain adequate levels of
blood calcium. HTis is accomplished through ___

Answer 11

Targeting the bone and activation of osteoclasts so
that the calcium will be released

Question 12

The most important hormonal regulator of electrolyte
(sodium, Potassium) concentration in extracellular fluids is

Answer 12

Aldosterone

Question 13

What organ in the body regulates erythrocyte
production through release of erythropoietin?

Answer 13

Kidney

Question 14

Of the formed elements which is capable of
transporting oxygen or carbon dioxide

Answer 14

Erythrocyte

Question 15

Which of the following is true about blood plasma?

Answer 15

Plasma is about 90% water

Question 16

An individual who is blood type AB-:

Answer 16

Can receive RBC’s from any blood type in moderate
amounts, except with the Rh-antigen

Question 17

Erythroblastosis fetalis occurs when:

Answer 17

Rh- mother has a Rh+ child

Question 18

All of the following are true of RBC’s except:

Answer 18

Lifespan of 120 days

Question 19

The heart lies in the ____ cavity

Answer 19

Ventral pericardial

Question 20

Normal heart sounds are caused by which of the
following events?

Answer 20

Closure of the heart valves

Question 21

The left ventricular wall if the heart is thicker than the
right to:

Answer 21

Pump blood with greater pressure

Question 22

The mitral valve:

Answer 22

Is the atrioventricular valve with two flaps

Question 23

Which measurement provides the most direct information
about valve function?

Answer 23

Phonocardiogram

Question 24

24. The P-wave (P->Q) of a normal electrocardiogram
    indicates:

Answer 24

Atrial depolarization

Question 25

The QRS complex:

Answer 25

Precedes ventricular contraction

Question 26

Which is the correct sequence of events for an action potential to transmit through the entire heart to stimulate cardiac muscles sequentially?

Answer 26

Purkinje fibers, atrioventricular bundle atrioventricular node, sinoatrial node

Question 27

Which vessel of the heart receives blood during ventricular systole (left/right)?

Answer 27

Aorta/pulmonary trunk

Question 28

Hemorrhage with a large loss of blood immediately (directly) causes:

Answer 28

A lowering of blood pressure due to the change in cardiac output- less blood means less fluid volume, which would cause a decrease in blood pressure

Question 29

Which of the following statements is not one of the three main factors influencing blood pressure?

Answer 29

Emotional state

Question 30

Which statement best describes arteries?

Answer 30

All carry blood away from the heart

Question 31

The primary functions of are to permit the exchange of nutrients and gases between the blood and tissue cells

Answer 31

Capillaries

Question 32

The outermost tissue layer of a blood vessel organ is the

Answer 32

Tunica externa

Question 33

The circulatory route that runs from the digestive tract to the liver is called

Answer 33

Hepatic portal circulation

Question 34

Which of the following is likely during strenuous exercise?

Answer 34

Capillaries of the active muscles will be filled with blood- this increases the supply of blood to the muscles

Question 35

An obstruction in the superior vena cava, just inferior to the brachiocephalic veins, would decrease the flow of:

Answer 35

Blood from the head neck and upper limbs to the heart

Question 36

A man is experiencing an infection in his nose. What route do leukocytes take from the heart to get to the nasal infection? (hint: this is a very similar route as to an eye infection) KEY: a-aorta, b-axillary artery, c-common cold, d-external carotid artery, e-internal carotid artery, f-maxillary artery, g- subclavian artery, h-brachiocephalic artery

Answer 36

A, h, c, e, f

Question 37

Which organ is responsible for synthesizing atrial natriuretic peptide (ANP)?

Answer 37

The heart

Question 38

A child is receiving a saline-growth hormone solution into the median cubital vein of her left arm. Which two veins would next receive the hormone that will be transported through her circulation.

Answer 38

Left basilic and cephalic veins

Question 39

Blood pressure homeostasis is important for life. Which mechanism(s) promote increased blood volume?

Answer 39

Conversion of angiotensinogen to angiotensin I, and then angiotensin I to angiotensin II. Which results in adrenal cortex releasing aldosterone

Question 40

Which intrinsic mechanism helps vasodilation of arteries in the systemic circulation?

Answer 40

Myogenic stretch of smooth muscles